Natural Selection 2 teaser shows massive and scary beast

Natural Selection 2 is scheduled for release this fall and the online FPS has a new teaser posted after the break.

Pitting aliens against humans, the strategic shooter allows two teams of up to 16 players to face against evolving environments that change as you play – so you supposedly never play the same game twice.

Hallways get deformed, flamethrowers become your best friend, power can be cut to enemy bases – loads of stuff’s possible.